FN Archimer Export Format PT J TI Comprehensive spatial distribution of tropical fish assemblages from multifrequency acoustics and video fulfils the island mass effect framework BT AF Salvetat, Julie Bez, Nicolas Habasque, Jeremie Lebourges-Dhaussy, Anne Lopez, Cristiano ROUDAUT, Gildas Simier, Monique Travassos, Paulo Vargas, Gary Bertrand, Arnaud AS 1:1;2:2;3:2;4:2;5:1;6:2;7:2;8:1;9:1;10:2; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:; C1 Univ Fed Rural Pernambuco, Posgrad Recursos Pesqueiros & Aquicultura, Rua Dom Manoel de Medeiros S-N, BR-52171900 Recife, PE, Brazil Univ Montpellier, MARBEC, CNRS, IRD,Ifremer, Sete, France Institut de Recherche pour le Développement, France LEMAR UBO CNRS IRD Ifremer, IRD, Plouzane, France Univ Fed Pernambuco, Lab Oceanog Fis Estuarina & Costeira, Dept Oceanog, Ave Prof Moraes Rego,1235 Cidade Univ, BR-50670901 Recife, PE, Brazil C2 UNIV FED RURAL PERNAMBUCO UFRPE, BRAZIL UNIV MONTPELLIER, FRANCE IRD, FRANCE IRD, FRANCE UNIV FED PERNAMBUCO UFPE, BRAZIL UM LEMAR MARBEC IN WOS Cotutelle UMR DOAJ copubli-france copubli-univ-france copubli-int-hors-europe copubli-sud IF 4.6 TC 4 UR https://archimer.ifremer.fr/doc/00736/84810/94422.pdf https://archimer.ifremer.fr/doc/00736/84810/94423.docx LA English DT Article CR FAROFA 1 FAROFA 2 FAROFA 3 AB Tropical marine ecosystems are highly biodiverse and provide resources for small-scale fisheries and tourism. However, precise information on fish spatial distribution is lacking, which limits our ability to reconcile exploitation and conservation. We combined acoustics to video observations to provide a comprehensive description of fish distribution in a typical tropical environment, the Fernando de Noronha Archipelago (FNA) off Northeast Brazil. We identified and classified all acoustic echoes into ten fish assemblage and two triggerfish species. This opened up the possibility to relate the spatial different spatial patterns to a series of environmental factors and the level of protection. We provide the first biomass estimation of the black triggerfish Melichthys niger, a key tropical player. By comparing the effects of euphotic and mesophotic reefs we show that more than the depth, the most important feature is the topography with the shelf break as the most important hotspot. We also complete the portrait of the island mass effect revealing a clear asymmetry. While primary productivity is higher downstream, fish concentrate upstream. The comprehensive fish distribution provided by our approach is directly usable to implement scientific-grounded Marine Spatial Planning. PY 2022 PD MAY SO Scientific Reports SN 2045-2322 PU Nature Research VL 12 IS 1 UT 000799975800085 DI 10.1038/s41598-022-12409-9 ID 84810 ER EF